File:Microscopic digiscoping (39079007790).jpg
Original file (3,714 × 2,718 pixels, file size: 2.98 MB, MIME type: image/jpeg)
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Summary[edit]
DescriptionMicroscopic digiscoping (39079007790).jpg |
Afocal photography, sometimes called digiscoping, simply means that a camera with a taking lens is used where an observer's eye would normally be, looking into the microscope (or telescope) through the eyepiece or ocular. Execution, however, is not especially simple if the photographer wants to collect multiple images so that focus-stacking software can be used to increase the depth of field. The only thing that should move between exposures is the subject, and this movement is controlled by slight adjustments of the fine focus knob on the microscope. The technique shown here involves a tripod with a geared central column for smooth vertical positioning, a 3-way Manfrotto 3028 tripod head to hold the camera at the same angle as the microscope viewing tube, a Velbon Macro Slider for fine control of on-axis and lateral movement of the camera, and a taking lens with a focal length chosen to minimize or eliminate vignetting of the field of view. A remote shutter release is essential, and the electronic shutter of the Nikon V1 is a plus. |
Date | |
Source | 20180318_2048 |
Author | dw_ross from Springfield, VA, USA |
Licensing[edit]
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
This image was originally posted to Flickr by dw_ross at https://flickr.com/photos/73817227@N00/39079007790 (archive). It was reviewed on 31 July 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
31 July 2018
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:21, 31 July 2018 | 3,714 × 2,718 (2.98 MB) | ComputerHotline (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
---|---|
Camera model | NIKON D700 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/8 |
ISO speed rating | 800 |
Date and time of data generation | 14:59, 18 March 2018 |
Lens focal length | 55 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Windows Photo Editor 10.0.10011.16384 |
File change date and time | 19:27, 18 March 2018 |
Y and C positioning | Centered |
Pair of black and white reference values |
|
Exposure Program | Aperture priority |
Exif version | 2.3 |
Date and time of digitizing | 14:59, 18 March 2018 |
Meaning of each component |
|
APEX exposure bias | 0 |
Maximum land aperture | 0 APEX (f/1) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, strobe return light detected, compulsory flash firing |
DateTime subseconds | 08 |
DateTimeOriginal subseconds | 08 |
DateTimeDigitized subseconds | 08 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 55 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 2.2.0.0 |